【单选题】
A spur gear pump should be operated with the discharge valves （）.
A、slightly opened
B、throttled
C、fully opened
D、halfway opened
查看正确答案A、spur geared B、screw geared C、worm geared D、belt driven
搜题
更多“A spur gear pump should be operated with the discharge valves （）.”相关的问题
第3题
A、higher efficiency of the gear train while reversing B、the higher gear ratio C、the multi-start feature D、higher recovering speed
第5题
A、maintaining a steadier speed B、delivering liquids over greater distances C、operating for longer periods of time D、producing a smoother discharge flow
第9题
A、reciprocating pumps B、positive displacement pumps C、centrifugal pumps D、centripetal pumps
